What makes a sperm cell to be a specialised cell?

A sperm cell is considered a specialized cell because it is specifically designed for the purpose of fertilizing an egg cell. Sperm cells have a unique structure and function that allows them to swim towards and penetrate an egg cell, delivering their genetic material for fertilization to occur. Additionally, sperm cells have a tail that allows them to move efficiently through the female reproductive tract to reach the egg. This specialization in structure and function makes sperm cells uniquely suited for their role in sexual reproduction.